David Muir

The six-member crew of the International Space Station is tasked with studying a sample from Mars that may be the first proof of extra-terrestrial life, which proves more intelligent than ever expected.

ABC News Special details the timeline of the attempted assassination of former President Donald Trump at a Pennsylvania rally and where the investigation stands ahead of the Republican Convention.

As 2021 comes to a close, ABC News present its annual two-hour special highlighting the biggest moments of a historic year. With the country still fighting COVID-19, a groundbreaking inauguration, the Capitol insurrection, and continued protests for racial justice, 2021 proved to be a year unlike any other in modern-day history. "Good Morning America" co-anchor Robin Roberts anchors "The Year: 2021" alongside a team of ABC News anchors and correspondents. "The Year: 2021" features reports on the history-defining events of the year, including breakthroughs in space exploration and vaccines, the race to save the planet from global warming, and how America continues to rebuild and reopen following two years of living in a pandemic, as well as the most talked about times in pop culture, such as milestones in movies and television.

The story of the enduring friendship between Orry Main of South Carolina and George Hazard of Pennsylvania, who become best friends while attending the United States Military Academy at West Point but later find themselves and their families on opposite sides of the American Civil War.

ABC World News is the flagship daily evening television news program of ABC News, the news division of the American Broadcasting Company television network in the United States. Currently the weekday editions (going by title ABC World News Tonight with David Muir) are anchored by David Muir. ABC World News has been anchored at various times by a number of other people since its debut in 1953. It also has used various titles, including ABC Evening News from 1970 to 1978 and World News Tonight from 1978 to 2006.

Firsthand accounts from authorities and journalists illuminating four disturbing events as they describe the twists and turns of the investigations and the breakthrough moments that led investigators and police to each killer's doorstep.